For a combination of One Game a Month, mini-LD 39, and Static Void Games January SNOW theme, I created this little game. It's a bit of a mix of Dino Run and Line Rider. You play a penguin trying to escape an avalanche. Avoid snow boulders, crags, and crevasses for as long as possible!

Yeah, it probably is randomly generated, he just uses a seeded Random thing probably.

Nope, all I'm using is good ol' Math.random() and some parameters (the ground changes by X between 25% and 50% of a screen, then by Y between a 50% drop and a 10% rise). I've made the source available if you don't believe me!